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655-705 (Hard)|   Geometry|      
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Bunuel
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The four sides of quadrilateral JKLM have equal length. What is the 22 Jul 2016, 00:05
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C
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65% (hard)

Question Stats:

49% (01:39) correct 51% (01:28) wrong based on 119 sessions

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The four sides of quadrilateral JKLM have equal length. What is the length of diagonal JL?

(1) JK = 2
(2) KM = 2
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C
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The four sides of quadrilateral JKLM have equal length. What is the 22 Jul 2016, 00:35
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Quad JKLM have equal length...It could be rhombus or square.

(1) JK =2
If square, diagonal JL could be found out .
If rhombus, it's not possible to found .
Insuff.
(2) KM = 2,
If square, diagonal JL =2.
If rhombus, not possible to find out. Insuff.

(1) + (2),
Quad JKLM is rhombus. diagonal JL could be found out.

Answer : C
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The four sides of quadrilateral JKLM have equal length. What is the 22 Jul 2016, 09:41
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Bunuel
The four sides of quadrilateral JKLM have equal length. What is the length of diagonal JL?

(1) JK = 2
(2) KM = 2
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Both diagonal should be equal
KM=JL=2

Ans B
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inshor
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The four sides of quadrilateral JKLM have equal length. What is the 22 Jul 2016, 23:38
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Statement 1 : side =2 , Does not specify if the fig is a square or rhombus
statement 2 : diagonal =2, diagonals need not be equal incase of a rhombus

St1 & st 2 : Clearly shows that the figure is not a square but a rhombus , hence the give one diagonal the other diagonal of the rhombus can be found.
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The four sides of quadrilateral JKLM have equal length. What is the 23 Jul 2016, 00:20
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rohit8865
Bunuel
The four sides of quadrilateral JKLM have equal length. What is the length of diagonal JL?

(1) JK = 2
(2) KM = 2
Both diagonal should be equal
KM=JL=2

Ans B
Show more

not correct..
for 2 statement the figure cn be square and a rhombus too..but we don't know what the actual figure is.We need more info.
1st stamens along with 2nd provides us req info that given figure is a rhombus(coz in a sq diagonal and side can't be equal)


so ans is C
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The four sides of quadrilateral JKLM have equal length. What is the 23 Jul 2016, 12:22
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Property of a Rhombus: the diagonals bisect each other at 90 deg but are not equal.
We dont know before hand if it is a sqr or rhombus.
Stmt1: gives the sides of the figure. but nothing about diagonal.
Stmt2: gives one of the diagonal. This in itself is not sufficient.

Combining 1 and 2, we have right angled triangle whose 2 sides are known to us. We can find the 3rd side. Hence Sufficient.
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The four sides of quadrilateral JKLM have equal length. What is the 16 Feb 2021, 06:11
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